Petrography and Provenance of Eze-Aku Sandstones in Afikpo Basin, Southeastern Benue Trough

Petrographic study of the Eze-Aku sandstones exposed within the Afikpo basin were analysed to determine the petrography, provenance and tectonic setting of the area. Petrographic studies showed that the Eze-Aku sandstones were predominantly quartz, feldspar and lithic fragments. The QFL triangular plot shows that the Eze-Aku sandstones are mainly sub-arkoses with subordinate amount of arkoses and quartz arenites. The ternary plot of the provenance category showed that the Eze-Aku sandstones were plotted within the basement uplift continental block, indicating that the sandstones could have been a product of high relief and erosion from the Oban and Cameroon Massifs, located east part of the Abakaliki anticlinorium and Afikpo Basin.